Instant Messaging ruins productivity

I've been doing a lot of time tracking (rescuetime etc) and I've noticed a disproportionate amount of time going to Telegram - - I only use Telegram for work, so I always had an excuse to keep it on, but it's definitely a double-edged sword - - I end up discussing things with clients far more inefficiently with clients, when they could just submit a support ticket instead and the whole thing could be discussed on the project management portal.
Have any of you noticed work IM being a hindrance to productivity?